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#
# Tests for the HOUR() function
#
# The Drizzle HOUR() function differs from the MySQL HOUR()
# function in these ways:
#
# * Does not accept invalid parameters. This results in an error
# in Drizzle.
#
# HOUR() on a NULL should produce
# a NULL.
SELECT HOUR(NULL);
#
# Test improper argument list
#
# 1 arg is required.
--error ER_PARSE_ERROR
# Wrong parameter count...but unfortunately produces 1064 Syntax Error due to limitations of
# the SQL parser, which considers HOUR a keyword before being a function symbol
SELECT HOUR();
--error ER_PARSE_ERROR
# Wrong parameter count...but unfortunately produces 1064 Syntax Error due to limitations of
# the SQL parser, which considers HOUR a keyword before being a function symbol
SELECT HOUR(1, 0);
#
# Test invalid dates passed to HOUR
# produce an error, not a NULL or anything
# else...
#
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR("xxx");
#
# Indy, bad dates!
#
# The following are all bad dates, with no possibility of interpreting
# the values as TIME-only components.
#
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR("0000-00-00"); # No 0000-00-00 dates!...
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR("0000-01-01"); # No zero year parts
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR("0001-00-01"); # No zero month parts
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR("0001-01-00"); # No zero day parts
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR("2000-02-30"); # No Feb 30th!
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR("1900-02-29"); # Not a leap HOUR since not divisible evenly by 400...
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR('1976-15-15'); # No 15th month!
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR('23:59:70'); # No 70th second!
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR('23:70:59'); # No 70th minute!
--error ER_INVALID_DATETIME_VALUE
SELECT HOUR('26:00:00'); # No 26th hour!
# A good date, which cannot be interpreted as a TIME component. Should return 0.
SELECT HOUR("2009-01-12");
# A good date, which should output 0 since no TIME component - Test of 2 digit year conversion...
SELECT HOUR("70-12-31");
# A good date in the common USA format, should output 0 since no TIME component
SELECT HOUR('07/31/2009');
# A good datetime, should output 3
SELECT HOUR("2008-11-30 03:30:15");
# A good datetime, should output 3
SELECT HOUR("2008-11-30T03:30:15");
# A good datetime, should output 3
SELECT HOUR("20081130033015");
# A good datetime, interpreted int->string, should output 3
SELECT HOUR(20081130033015);
# A good datetime with subsecond component, interpreted int->string, should output 3
SELECT HOUR(20081130033015.01);
# A good time (according to MySQL, not Jay Pipes...), should output 23
SELECT HOUR(231115);
# A good time (according to MySQL, not Jay Pipes...), should output 23
SELECT HOUR("231115");
# A good time, should output 23
SELECT HOUR("23:59:59");
# Now test field values of different types
USE test;
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1 (
int_fld INT NOT NULL
, date_fld DATE NOT NULL
, datetime_fld DATETIME NOT NULL
, timestamp_fld TIMESTAMP NOT NULL
, char_fld CHAR(22) NOT NULL
, varchar_fld VARCHAR(22) NOT NULL
, text_fld TEXT NOT NULL
, blob_fld BLOB NOT NULL
);
# Should all output 16 except first 2, which should output 0.
INSERT INTO t1 VALUES (
20071130
, "2007-11-30"
, "2007-11-30 16:30:19"
, "2007-11-30T16:30:19"
, "2007-11-30 16:30:19"
, "2007-11-30 16:30:19"
, "2007-11-30T16:30:19"
, "2007-11-30T16:30:19"
);
SELECT HOUR(int_fld) FROM t1;
SELECT HOUR(date_fld) FROM t1;
SELECT HOUR(datetime_fld) FROM t1;
SELECT HOUR(timestamp_fld) FROM t1;
SELECT HOUR(char_fld) FROM t1;
SELECT HOUR(varchar_fld) FROM t1;
SELECT HOUR(text_fld) FROM t1;
SELECT HOUR(blob_fld) FROM t1;
DROP TABLE t1;
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